Walter & Group........
From Joe Libeu (CBOG):
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Comment: Great comments, Joe ..... If all shops did it this way, we'd have no problem. Problem is that in many areas, the shops may well not have the advice and assistance of top notch instructors.
Gordy
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From Mac Brown:-
From Lewis Hinks (New Group member):
Gordy, hey:
Has the definitive work been yet written on fastness verses stiffness?
I've heard many differing theories on this -- soft rods, fasts tips. Are
these products of compound tapers?. Many of them claim a basis in hard
science but tell differing stories. Is it a language issue -- couch vs
sofa? Hard to determine which is science and which is pseudo?
Thanks,
David
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David .... Don't think it has. Orvis and some other companies have marketed rods based on various interpretations of their flex profiles. I know of no, "standards" which have been established by any organization. One thing which makes this difficult to standardize is that it is not only the flexibility of the rod itself, but where the rod flexes. One soft rod may bend more at the tip, another at mid section, and a third relatively more at the butt section. Of course, the same is true of fast rods.
Just a few years back it seemed that hot competition dictated the selling of rods based upon the number of millions of modulus measurement.
As you know, a soft rod can be made from high modulus fibers, and a stiff one from low modulus fibers. The action of the rod is a combination of the modulus of its materials and its design parameters. I think professional rod designers would agree that the latter is the more important of the two.
.............. Gordy
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From Jeff Barefoot, MCCI :-
Hi Gordy,
If you look out for the customer’s best interest first the bottom line
takes care of itself because of the business generated from earned
reputation. At times this may mean demystifying some of the marketing
strategy that the manufacturers create to push their products. Some of the
marketing is legitimate some is not. The best pro shops act as a buffer and
clarify the choices of selecting tackle, not confuse. A knowledgeable shop
would never push something like faster and stiffer, and that a customer must
buy the most expensive models to satisfy their needs. A good pro shop
guides the customer in making a purchase that’s based on satisfying his or
her own individual parameters. As a matter of fact a good pro shop would not
sell a customer with poor skills a rod to mask their inadequacies, but
instead offer at no cost the lessons needed to bring that customers skills
up to snuff before the purchase. Now the customer has the ability to
evaluate the differences of one rod to the next based on there own decision
instead of a salesman’s opinion or the manufacturers marketing hype. This
is the essence of customer service. It is the edge that the small pro shop
usually has over the internet or large retailer not set up to cater in this
way.
Jeff Barefoot
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Jeff: Couldn't agree more . This stands as one good reason the, "real" fly shops and pro shops will survive the onslaught of the BIG BOX STORE MEGA SHOPS. Same with the sales of golf equipment. ........... Gordy
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From Robert Shigley:
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Robert: Shorter, "soft" rods give me a better feel of control when casting. When fighting a large fish, however, there is a trade-off between protecting fine tippets and providing enough power to avoid exhausting a fish you wish to release. The longer, limber rod protects the tippet, while the shorter one tends to, "protect the fish". When fighting large fish, one thing which is very important is the EFFECTIVE ROD LENGTH . (Also makes a difference with casting and with line control.) It has been defined as the chord that subtends the arc of the fully bent rod. This is an explanation of why the effective length of a soft 10' rod may well be less than that of an 8' stiff rod. ( Check out THE TECHNOLOGY OF FLY RODS by Don Phillips, pp. 44-47).
Gordy
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From Michael Jones: -
I just spent a full day at a cane fly rod builders conclave up here in
Maine: Superboo IV. It was the first opportunity I have had to cast
a slower action rod since our Marlborough FFF meeting with Rod McGarry.
You left me with an assignment to consider slow action vs fast action
rods, and I have come up with a few observations.
Considering rods of the same line weight, length, and mass, but only
adjusting the modulus of the rod, my guess is that there are some
factors to consider in regards to translation/rotation, velocity at
rod tip, rod tip travel, & drift.
Translation/rotation: Slower rod (decreased modulus): longer
translation, later rotation.
Velocity at rod tip (just prior to stop): Slower rod: same as fast.
Rod tip travel: Slower rod: increased rod tip travel during SLP
Drift: Although this may be related to style more than substance, I
find myself adding (future) casting stroke length, by drifting after
the perceived 'stop' more-so with a softer action rod. It is my
perception that this may help in lengthening the stroke and potential
rod tip travel (obvious), but may also dampen rebound forces,which
should theoretically be more pronounced (wiggles in rod-leg of loop)
with a softer rod.
If I were more versed in physics, I would guess that this is some
equation related to WORK, and by that the work is related to the
weight of the object (fly line), and influenced by many things (loop
size, air resistance, efficiency), but for the purpose of discussion
and these variables being constant, then: velocity should be the one
variable that derives how long the fly line will travel relative to
gravitational forces.
The mechanisms (rods) have to match in terms of rod tip velocity to
achieve the WORK requirements. A fast rod can attain this with a
shorter casting stroke, decreased SLP tip travel, and some translation
& rotation...whereas: the slow rod attains this velocity at the rod
tip with a longer casting stroke, increased SLP tip travel, longer
translation (and possibly drift), and delayed rotation.
Given a fixed model like this, I would be interested to see if you
could measure tip travel in inches, and compare (and proportion)
translation and rotational forces (and proportions) and their input.
My guess is that translation and rotation do not change largely in
percentage/proportion, but rather only APPEAR to be more 'seperate'
and 'unique' with increased tip travel...just a guess. You would
probably need both video analysis and some medium to measure
rotational forces over time to measure this relationship.
Michael Jones
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Michael.. Good work on your assignment ! You have gotten to the point of some things we have not yet measured. I'm not a physicist either ... but I'll bet the amount of work put in to a cast of a given distance with the same weight tackle for the soft and the fast rod will probably be about the same.
As I watch elite casters with an eye to relative amounts of translation and rotation, I'm coming to the conclusion that this may turn out to be a matter of STYLE. The fact that you need both for an efficient cast, I look at as SUBSTANCE.
Years ago, Floyd Franke (CBOG) gave me many tough, "assignments" to complete. We now look at this sort of thing as part of the mentoring concept so important to the development of a Master. (Check out Jim Valle's article in the last issue of the LOOP. see: http://www.fedflyfishers.org/loop.php)
Gordy
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